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To the Editor: Medical and scientific journals increasingly cite information available only on the Internet.^1-2 The International Committee of Medical Journal Editors stated that "Electronic publication is an area that is in flux," and recommended that "Editors should develop, make available to authors, and implement policies on . . . archiving . . . and electronic publication."³ This observational study examined the policies of high-impact medical and scientific journals for the preservation of citations to digital information.

Methods

The Web sites and published Instructions for Authors of the 100 highest scientific impact periodicals⁴ and their corresponding publisher Web sites were examined (October-December 2003). Journal impact factors were determined using the ISI Web of Knowledge journal citation reports for 2002. The query was performed for all journals included in the science edition database, which includes more than 5700 journals in the areas of science and technology. The journal impact factor is a measure of the average frequency with which . . . [Full Text of this Article]

Lisa M. Schilling, MD
lisa.schilling@uchsc.edu
Department of Medicine

Desiree P. Kelly, BA; Amanda L. Drake, BA; Lauren F. Heilig, BA; Eric J. Hester, MD
Department of Dermatology
University of Colorado Health Sciences Center
Denver

Robert P. Dellavalle, MD, PhD
Dermatology Service
Denver Veterans Affairs Medical Center

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